Raws li lub npe txhais tau hais tias, Kev Hloov Hloov Hloov Tsis Siv Neeg (ATS) rau cov khoom siv hluav taws xob dual tau txuas mus rau lub zog thaub qab thaum lub tshuab hluav taws xob tseem ceeb tsis ua haujlwm, kom ntseeg tau tias cov haujlwm txuas ntxiv tsis cuam tshuam. Cias muab, lub kaw lus siv ib qho tseem ceeb lub zog thiab ib qhov chaw thaub qab; thaum lub hauv paus ntsiab lus tsis ua hauj lwm los yog ib qho teeb meem tshwm sim, qhov hloov pauv hloov cov khoom thauj mus rau qhov chaw thaub qab (uas, rau cov khoom siv sib dua, tuaj yeem muab los ntawm lub tshuab hluav taws xob), tso cai rau cov khoom siv txuas ntxiv mus ua haujlwm ib txwm. Cov kev siv feem ntau muaj xws li elevators, hluav taws xob kev nyab xeeb, thiab kev soj ntsuam; UPS (Uninterruptible Power Supply) cov tshuab siv los ntawm cov tsev txhab nyiaj ua haujlwm ntawm lub hauv paus ntsiab lus zoo sib xws, txawm tias lawv qhov chaw thaub qab muaj cov roj teeb pob.
Ib qho Kev Hloov Hloov Tsis Siv Neeg (tom qab no hu ua "transfer switch") yog ib qho khoom siv los ntawm ib lossis ntau qhov hloov pauv thiab lwm yam khoom siv hluav taws xob tsim nyog. Nws yog tsim los saib xyuas cov hluav taws xob circuits thiab cia li hloov ib lossis ntau dua load circuits ntawm ib lub hwj chim mus rau lwm qhov. Nws yog qhov siab -kev ua tau zoo, muaj kev nyab xeeb, thiab txhim khu kev qha dual- lub zog hloov pauv tsis siv neeg uas muaj cov qib siab ntawm automation thiab ntau yam kev siv.
